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Zoonomia PlateIII - Public domain book illustration

Zoonomia PlateIII - Public domain book illustration

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Summary

Plate III. look steadily for a minute on this central spot, and then closing your eyes, and applying your hand at about an inch distance before them, so as to prevent too much or too little light from passing through the eye-lids, and you will see the most beautiful circles of colours that imagination can conceive.

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Date

1796
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Source

Zoonomia, or, the Laws of Organic Life, Second Edition, Volume I., available freely at Project Gutenberg
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Public Domain

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